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Phenotypes of unc-64; snb-1 double- mutant animals. Bright field photographs of young adult animals singly and double mutant for unc-64 syntaxin and snb-1 synaptobrevin mutations. Animals were isolated as L4 larvae and then incubated 1 d before examination. Specific combinations of alleles cause severe behavioral, growth, and pharyngeal pumping defects.
